Shahid is available for hire
Hire ShahidShahid Sheharyar
Verified Expert in Engineering
Full-stack Developer
Lahore, Punjab, Pakistan
Toptal member since September 24, 2021
Bio
Shahid is a Toptal-vetted AI-enabled engineer who treats AI as a core part of how he builds, then verifies every result before it ships. His latest project, DeepApply, is an autonomous agent that reasons across Claude, Gemini, and local models to evaluate and apply to jobs on its own. Behind that sits 7 years of building real products, from a live-streaming marketplace to an eSIM app for major U.S. carriers, on cloud infrastructure designed to scale.
Portfolio
Olivera
AI Automation, AI-generated Code, Chrome Extensions, AI Model Integration...
Portola Holdings Pty Ltd
PHP, Angular, Amazon Web Services (AWS), Security
Fleet AI INC
TypeScript, Python, SQLite, Node.js, Svelte, Full-stack Development...
Experience
- React Native - 6 years
- TypeScript - 6 years
- PostgreSQL - 5 years
- React - 5 years
- Amazon Web Services (AWS) - 4 years
- Node.js - 4 years
- AI Automation - 1 year
- AI Model Integration - 1 year
Work Experience
Founder
2026 - 2026
Olivera
- Built a Chrome extension and Node.js middleware server that autonomously evaluated job postings against custom criteria, rejected non-matches before filling any form, and submitted applications end to end.
- Architected a multi-model LLM layer that combined Claude and Gemini APIs for reasoning with two self-hosted 7B models (Qwen and Cogito) on Ollama, sending lighter tasks to local inference to cut API costs and latency.
- Designed a human-in-the-loop review flow where the agent reported each action with its reasoning for approval or rejection, and automated interview scheduling through structured JSON output that reconciled both parties’ availability.
- Built a YouTube music-removal tool in Python that separated vocals from background music using Spleeter, then remuxed the clean audio back into the video with FFmpeg.
- Directed AI to generate the initial code for the music-removal tool, then debugged and refined it by hand into a reliable workflow covering download, separation, and final output.
- Built an offline Urdu-to-English transcriber on faster-whisper, running the Whisper “small” model locally on CPU with int8 quantization to balance speed and accuracy without paid APIs or a GPU.
- Tuned the Urdu transcriber by setting the source language explicitly instead of using auto-detection and enabling voice activity detection to skip silence, which sped up processing of long recordings.
- Managed multiple Python versions and isolated virtual environments across the music-removal and transcription projects, resolving conflicting dependencies such as Spleeter’s TensorFlow requirements versus newer libraries like faster-whisper.
Technologies: AI Automation, AI-generated Code, Chrome Extensions, AI Model Integration, Node.js
PHP Consultant and Platform Auditor
2025 - 2025
Portola Holdings Pty Ltd
- Used AI to document an undocumented 15-year-old legacy system in a fraction of the usual time.
- Created comprehensive feature specifications with effort estimates, making onboarding faster and clearer for new engineers.
- Delivered validated documentation through AI-assisted note-taking and cross-verification.
Technologies: PHP, Angular, Amazon Web Services (AWS), Security
Full-stack Developer
2025 - 2025
Fleet AI INC
- Rapidly cloned commercial applications for AI agent training with pixel-perfect accuracy.
- Reverse-engineered complex seat-map functionality for a Ticketmaster-like application.
- Built full-stack solutions single-handedly, including back-end architecture, database design, and front-end UI.
- Integrated Google Maps APIs with advanced JavaScript logic for a property listing platform.
- Designed a prompt-driven workflow for generating realistic U.S. property data.
Technologies: TypeScript, Python, SQLite, Node.js, Svelte, Full-stack Development, Artificial Intelligence (AI), Claude, Cursor AI, AI Integration, AI-generated Code, JavaScript, React, AI Model Integration, AI Automation
Tech Lead
2024 - 2025
Afrocart
- Laid out the entire architecture with my team based on PostgreSQL, Tosa, Swagger, TypeScript-based React, React Native, and Express over only three months.
- Managed a team of 6-10 people using Jira for sprint, scrum, and daily stand-up meetings.
- Made architecture scalable so that it was economical and fast at the same time.
Technologies: Amazon EC2, Amazon Web Services (AWS), Amazon Elastic Container Service (ECS), SendGrid, React Native, React, Express.js, TypeScript, PostgreSQL, HTML, Payment Gateways, Data Scraping, API Integration, Data Pipelines, Managed Services, PostgreSQL 9, Proxies, Scraping, Supabase, Website Data Scraping, Microsoft Excel, ChatGPT, Web Development, CI/CD Pipelines, NestJS, Web3.js, Amazon Simple Email Service (SES), Dashboards, Data Security, User Management, Offline Data Synchronization, SaaS, App Development, Large Language Models (LLMs), Java, Swift, Streaming, Authentication, OAuth 2, SAML, Single Sign-on (SSO), Compliance, Responsive Development, Scroll Animations, Claude API, Multi-agent Systems, OpenAI API, Recommendation Systems, Non-relational Databases, RESTFul APIs, Relational Databases, AI Tools, User Experience (UX), User Interface (UI), Integration, Amazon Interactive Video Service (Amazon IVS), Security, Stripe API, Progressive Web Applications (PWAs), Figma to React, Mobile App Development, Mobile, JavaScript, Node.js
Chief Technology Officer
2023 - 2025
Sortup
- Coordinated several projects successfully, sometimes multiple projects at the same time, to establish my company's reputation.
- Used advanced features of Git, Jira, and shell scripts to make deployments and processes smooth, fast, and reliable.
- Worked closely with the CEO of Sortup to directly communicate with clients to help scale businesses.
Technologies: Amazon Elastic Container Service (ECS), Amazon EC2, React Native, Salesforce, TypeScript, Docker, Managed Services, Scraping, Microsoft Excel, Vercel, Amazon Simple Email Service (SES), Data Security, Full-stack Development, User Management, SaaS, Multi-agent Systems, OpenAI API, CTO, Mobile, JavaScript, React, Node.js, PostgreSQL, Amazon Web Services (AWS)
Senior React Native Engineer
2023 - 2024
BFF
- Integrated Amdocs for multi-network operator support, enabling consumers to purchase a single eSIM covering all providers and switch between Verizon, AT&T, or T-Mobile.
- Established the base framework and generator pattern for a BFF app supporting multiple interlinked user roles (parent, child, friend), using React Native, Redux, and Firebase.
- Built the architecture using MapBox, Axios, and React Navigation.
- Drove integration delivery through active participation in sprint planning, daily standups, presentations, and integration meetings with Amdocs.
Technologies: React Native, Mapbox, Mapbox iOS SDK, REST APIs, QR Codes, JavaScript, TypeScript
Full-stack Developer
2022 - 2023
Game On! App LLC
- Worked as a lead software developer, supervising, researching, and developing intricate application features, including video calls, in-app chats, and payment integration.
- Developed a detailed portal for the staff in React consisting of a dashboard, settings, chat, and video interfaces.
- Built a fully cross-platform product that can operate over the web, iOS, and Android.
- Developed a free video calling system instead of the conventional calling one. The new system costs $2 per month for each user.
- Created an end-to-end system for the mobile, web, and back end using advanced TypeScript skills, including Generics.
- Deployed a back-end code on a serverless platform and managed code versioning using Git.
- Deployed a complete background architecture on Firebase services; it includes the Firebase Realtime database, Cloud storage, Cloud Functions for Firebase, and Firebase Authentication.
- Converted detailed Figma designs into pixel-perfect screens. This was done by creating reusable components and functions. The designs were responsive to support all screen sizes, web or mobile.
- Helped the client provide realistic timelines and worked on the calculation to give the cost of running the server and applications.
- Implemented Google Analytics to get insights into user interactions.
Technologies: React, React Native, Node.js, Full-stack, Stripe, Analytics, Google Analytics, React Redux, Redux Toolkit, Cloud, Artificial Intelligence (AI), Google Cloud Platform (GCP), NoSQL, SQL, UI Design, UX Design, GitHub, Tailwind CSS, Expo, Mobile Apps, Chrome Extensions, Payment Gateways, Data Scraping, API Integration, Data Pipelines, PostgreSQL 9, Proxies, Scraping, Supabase, Website Data Scraping, JSON, Database Design, Vercel, Web Development, CI/CD Pipelines, Dashboards, Full-stack Development, Offline Data Synchronization, SaaS, App Development, Large Language Models (LLMs), Streaming, Authentication, Authorization, OAuth 2, SAML, Compliance, Responsive Development, Scroll Animations, Multi-agent Systems, OpenAI API, Prompt Engineering, Recommendation Systems, AngularJS, Non-relational Databases, RESTFul APIs, Relational Databases, AI Tools, User Experience (UX), Amazon Interactive Video Service (Amazon IVS), Security, Stripe API, Progressive Web Applications (PWAs), Figma to React, Mobile App Development, Mobile, JavaScript, TypeScript
Mobile Developer
2022 - 2023
Gather Endeavors LLC
- Worked on the core pieces of the mobile application that were written and fixed using JavaScript as the programming language.
- Provided fixes to location-based features that were reported on newer versions of iOS.
- Delivered the application smoothly to the App Store, which often requires vigilant screening from Apple.
- Worked primarily on the website's back end using PHP.
- Supervised the process of development and reduced clients' costs by about 30%.
Technologies: JavaScript, iOS, Android, NoSQL, UI Design, UX Design, GitHub, Tailwind CSS, Mobile Apps, HTML, Payment Gateways, API Integration, Proxies, Scraping, JSON, Web Development, Offline Data Synchronization, App Development, Streaming, Authentication, Claude API, OpenAI API, Prompt Engineering, Recommendation Systems, AngularJS, Non-relational Databases, AI Tools, User Interface (UI), Integration, SwiftUI, Progressive Web Applications (PWAs), Figma to React, Mobile App Development, Mobile, MySQL, Amazon Web Services (AWS)
Mobile Developer
2022 - 2022
Gather Endeavors LLC
- Developed the application that notifies volunteers of new volunteer activities using push notifications.
- Worked on several aspects of the product, including website design using HTML and CSS, deployment of latest code on AWS EC2 Linux instance, and Apple remote notification service integration with PHP.
- Wrote the mobile application to include amazing features like goal tracking, campaigns, push notifications, and scheduled notifications in JavaScript and jQuery.
- Developed campaign pop-ups and a mechanism allowing the client to manage campaigns dynamically.
- Deployed their mobile application in accordance with Apple developers' guidelines.
Technologies: JavaScript, Titanium, Amazon Web Services (AWS), Amazon EC2, PHP, jQuery, HTML5, CSS, REST APIs, Sass, Git, SQL, UI Design, UX Design, GitHub, Tailwind CSS, Mobile Apps, Chrome Extensions, Data Scraping, PostgreSQL 9, Supabase, Large Language Models (LLMs), Authorization, SAML, Single Sign-on (SSO), Compliance, Multi-agent Systems, AngularJS, Non-relational Databases, Relational Databases, User Interface (UI), Security, Mobile App Development, Mobile, MySQL
Senior Software Engineer
2021 - 2022
BILDIT
- Developed a full-fledged website in React to showcase product documentation for developers to use and benefit from.
- Worked on migrating the React Native application to Hermes on iOS. It involved tasks like source control, ES linting, and Husky git hooks to test the code from different collaborators.
- Worked with custom React hooks to make web pages responsive to dynamic screen size changes.
- Handled a client SDK that supports CJS or common JavaScript runtime that can be used on React and React Native.
- Wrote my own Swagger implementation for the Firebase Cloud Functions, which is essentially Node.js running on Google servers.
- Provided valuable insights to the team to improve code quality and the core architecture of the product.
- Utilized TypeScript to build a React website. I also used TypeScript prediction and tooltips.
Technologies: React, Headless Software, React Native, HTML5, CSS, REST APIs, Git, Cloud Firestore, Python, Redux, Next.js, MongoDB, React Redux, Redux Toolkit, Artificial Intelligence (AI), SQLite, Drizzle, ORMLite, UX Design, GitHub, Mobile Apps, Payment Gateways, Data Scraping, API Integration, Data Pipelines, Supabase, Web Scraping, Website Data Scraping, JSON, ChatGPT, Web Development, Web3.js, Data Security, Full-stack Development, App Development, Large Language Models (LLMs), Authentication, SAML, Single Sign-on (SSO), Responsive Development, Claude API, Multi-agent Systems, Prompt Engineering, AngularJS, Non-relational Databases, Relational Databases, AI Tools, Amazon Interactive Video Service (Amazon IVS), Security, Figma to React, Mobile App Development, Mobile, JavaScript, Node.js, TypeScript
Senior Software Developer
2019 - 2022
Strategic Systems International
- Developed a mobile application framework that layers GraphQL SDL to a TypeScript structure. This improved code readability, robustness, and development efforts for all the mobile developers were reduced to half.
- Built React Native components from scratch using TypeScript when the components were not readily available. This included sliders, calendars, and animatable, swipeable, and collapsable UI components.
- Led a team of developers to migrate the ASP.NET/SQL application with 20,000+ users and over a million jobs to the .NET Core/PostgreSQL application.
- Developed a map marker cluster algorithm. This involved SQL, Microsoft C#, ASP.NET, RESTful APIs, and Angular for the web end and React Native for the mobile front end.
- Led a team of eight individuals, three from India, to develop a 2nd version of the application. This included task division, Git source control, deadline management, and communication with the client.
- Worked with AWS services such as Elasticsearch, AWS Lambda/Amazon EC2 containers, Amazon Elastic Container Service (Amazon ECS), and Docker.
- Worked on large-scale analytics module, which consisted of segments in conjunction with Google Analytics and Mix panel.
- Implemented user profile tracking, event personalization, and advanced engagement tracking techniques, allowing in-depth insight into user interactions.
Technologies: JavaScript, Angular, React Native, Back-end, GraphQL, Docker, APIs, Amazon Elastic Container Service (ECS), HTML5, CSS, REST APIs, ASP.NET Core, Redis, Git, Elasticsearch, PostgreSQL, Redux, UI Components, UI Libraries, Component Libraries, Segment, Analytics, Mixpanel, Google Analytics, .NET Core, React Redux, Redux Toolkit, SQLite, Data Extraction, Data Pipelines, Managed Services, PostgreSQL 9, Proxies, JSON, Database Design, ChatGPT, Web Development, CI/CD Pipelines, Web3.js, Dashboards, Data Privacy, Data Security, Full-stack Development, App Development, Large Language Models (LLMs), Swift, Authentication, Authorization, OAuth 2, SAML, Single Sign-on (SSO), Compliance, Responsive Development, Scroll Animations, Claude API, Multi-agent Systems, OpenAI API, Recommendation Systems, AngularJS, RESTFul APIs, Relational Databases, AI Tools, User Experience (UX), User Interface (UI), Integration, SwiftUI, Amazon Interactive Video Service (Amazon IVS), Security, Stripe API, Progressive Web Applications (PWAs), Mobile App Development, Mobile, TypeScript, Amazon Web Services (AWS)
Full-stack Mobile Developer
2020 - 2020
Freelance
- Developed a tuning appointment application that can be used with admins, staff members, and users.
- Involved React Native, Google Services, including realtime-database, FCM, and Google Functions to send real-time notifications.
- Integrated QR codes so that people could scan each other's mobiles and exchange their contacts.
- Maintained bug fixes on Jira and delivered priority fixes.
- Led a team and instilled interest among members, and tackled some of the most challenging problems.
Technologies: Android, iOS, React Native, Firebase, Google Cloud, Google Cloud Functions, Firebase Cloud Messaging (FCM), QR Codes, HTML, Chrome Extensions, API Integration, Data Extraction, PostgreSQL 9, Supabase, Web Scraping, Website Data Scraping, JSON, Microsoft Excel, Database Design, Vercel, CI/CD Pipelines, NestJS, Web3.js, Data Privacy, Data Security, Full-stack Development, App Development, Java, Swift, Authentication, OAuth 2, SAML, Single Sign-on (SSO), Compliance, Responsive Development, Scroll Animations, Claude API, OpenAI API, Prompt Engineering, Recommendation Systems, AngularJS, Non-relational Databases, RESTFul APIs, Relational Databases, AI Tools, User Experience (UX), Integration, Security, Stripe API
Software Developer
2020 - 2020
Freelance
- Developed an exquisite front-end design, which includes charts, graphs, and dynamic maps.
- Included extensive JavaScript skills, RESTful APIs integration, and the use of Google's Geo Charts library.
- Maintained communication with the client, showed them incremental changes, and swiftly made changes to the code based on feedback.
- Achieved a five-star rating due to the client's satisfaction with the quality of my work delivered within the deadline and saving them from hosting services.
Technologies: JavaScript, TypeScript, Data Privacy, App Development, Large Language Models (LLMs), Java, Authorization, OAuth 2, Single Sign-on (SSO), Claude API, Multi-agent Systems, OpenAI API, Relational Databases
Desktop Application Developer
2019 - 2019
Self-employed
- Developed an entire clock's application for Windows, including the clock's design.
- Completed the project in a short amount of time while continuing with my graduation.
- Successfully deployed my installer for public downloads.
Technologies: C++, API Integration, Data Extraction, Supabase, Web Scraping, NestJS, Web3.js, Dashboards, Data Privacy, App Development, Java, SAML, Responsive Development, Scroll Animations, Claude API, Multi-agent Systems, OpenAI API, Prompt Engineering, Recommendation Systems, Non-relational Databases, RESTFul APIs, Relational Databases, AI Tools, User Interface (UI), Stripe API, Progressive Web Applications (PWAs)
Experience
Game On!
Game On! is a startup similar to BetterHelp, aimed to provide mental help to athletes over in-app video calls and chats. It includes payment automation, provider recommendations, and scheduling services to help athletes to overcome their mental issues.
Marketplace
https://apps.apple.com/us/app/cross-country-marketplace/id1535624633A cross-platform healthcare mobile application that enables staff to book their shifts and log their time logs. It involved SQL, PostgreSQL, Elasticsearch, React Native, Angular, and Microsoft C#/ASP.NET
My work included integrating Google Maps services, query optimization with AWS Elasticsearch, and fast scrolling infinite calendars.
The project was a great success, as the client signed up for another long-term project.
My work included integrating Google Maps services, query optimization with AWS Elasticsearch, and fast scrolling infinite calendars.
The project was a great success, as the client signed up for another long-term project.
Docusaurus Documentation
https://docs.bildit.co/I built an easy-to-use documentation site that helps clients easily use the company's product. It included a React and Firebase DB for authentication.
It significantly improved the overall outlook of the company's product and helped developers understand their work more efficiently.
It significantly improved the overall outlook of the company's product and helped developers understand their work more efficiently.
React Native: Swipe Tabs
An npm TypeScript component that I recently created. The component makes applications' tabs seamlessly swipeable with just a few lines of code. It uses React Native core animation features, providing a continuous user experience throughout its applications.
Endless Memories
https://github.com/Sheharyar-Shahid/3D-MaxA freelance project aimed at developing a 3D game from scratch in C++.
While most people use gaming engines like Unity to make games, I approached it as an opportunity to understand the fundamental principles of game development. For this project, I used an OpenGL extension called SFML to render 3D graphics in isometric mode.
While most people use gaming engines like Unity to make games, I approached it as an opportunity to understand the fundamental principles of game development. For this project, I used an OpenGL extension called SFML to render 3D graphics in isometric mode.
DeepApply — AI-driven Job Application Automation Using LLM Agents
DeepApply is a Chrome extension paired with a Node.js middleware server that autonomously fills and submits job applications. The extension executes fill scripts on live application pages, while the server orchestrates logic between the browser and an LLM layer — evaluating each job against my criteria and auto-rejecting non-matches before ever filling a form.
Under the hood, it runs on a multi-model setup: Gemini and Claude (via paid API) for reasoning and evaluation, alongside self-hosted models through Ollama — Qwen 7B and Cogito 7B — for lighter, faster local inference. After each application, the agent sends me a message summarizing what it did and why, and I can approve, reject, or ask it to explain its reasoning. Scheduling is LLM-driven too: the model outputs a structured JSON object that reconciles my availability with the client's, producing accurate interview timing without manual coordination.
Under the hood, it runs on a multi-model setup: Gemini and Claude (via paid API) for reasoning and evaluation, alongside self-hosted models through Ollama — Qwen 7B and Cogito 7B — for lighter, faster local inference. After each application, the agent sends me a message summarizing what it did and why, and I can approve, reject, or ask it to explain its reasoning. Scheduling is LLM-driven too: the model outputs a structured JSON object that reconciles my availability with the client's, producing accurate interview timing without manual coordination.
Education
2015 - 2019
Bachelor's Degree in Computer Science
National University of Computer and Emerging Sciences (Cum Laude) - Lahore, Punjab, Pakistan
Certifications
DECEMBER 2020 - PRESENT
Microsoft: Programming in C#
Microsoft
Skills
Libraries/APIs
React, Node.js, Stripe, React Redux, Web3.js, Claude API, OpenAI API, Stripe API, REST APIs, jQuery, Drizzle, Mapbox iOS SDK
Tools
Redux Toolkit, GitHub, Microsoft Excel, ChatGPT, Amazon Simple Email Service (SES), Amazon Elastic Container Service (ECS), Git, Google Analytics, Expo, MATLAB, Firebase Cloud Messaging (FCM), SendGrid, Claude, Jira
Languages
JavaScript, C#, Python, TypeScript, CSS, HTML5, HTML, SAML, C++, GraphQL, Sass, PHP, SQL, Java, Swift
Frameworks
React Native, Redux, Jest, Next.js, Express.js, NestJS, OAuth 2, AngularJS, SwiftUI, Angular, ASP.NET Core, .NET Core, Tailwind CSS, Titanium, .NET, ASP.NET, Selenium, ORMLite, Svelte
Paradigms
UI Design, UX Design, Database Design, App Development, Responsive Development
Platforms
Android, Amazon Web Services (AWS), Firebase, Google Cloud Platform (GCP), Vercel, Mobile, Mixpanel, iOS, Docker, Amazon EC2, XAMPP, Salesforce, Visual Studio Code (VS Code), Mapbox
Storage
PostgreSQL, MySQL, Data Pipelines, JSON, Relational Databases, Cloud Firestore, MongoDB, SQLite, Google Cloud, Elasticsearch, Redis, NoSQL
Other
Mobile App Development, APIs, Full-stack, Component Libraries, UI Components, UI Libraries, Front-end, Chrome Extensions, Payment Gateways, Data Scraping, API Integration, Managed Services, PostgreSQL 9, Supabase, Web Scraping, Web Development, CI/CD Pipelines, Dashboards, Data Privacy, Data Security, Full-stack Development, User Management, SaaS, Large Language Models (LLMs), Authentication, Authorization, Single Sign-on (SSO), Compliance, Scroll Animations, Multi-agent Systems, Prompt Engineering, Recommendation Systems, Non-relational Databases, RESTFul APIs, AI Tools, User Experience (UX), User Interface (UI), Integration, Amazon Interactive Video Service (Amazon IVS), CTO, Progressive Web Applications (PWAs), Figma to React, Back-end, QR Codes, Segment, Analytics, Cloud, Artificial Intelligence (AI), Mobile Apps, Proxies, Scraping, Website Data Scraping, Offline Data Synchronization, Streaming, Video Streaming, AI Integration, AI-generated Code, AI Model Integration, AI Automation, Google Cloud Functions, Headless Software, Data Extraction, Security, Cursor AI
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